Speaker



FIG. 1 is a top perspective view of a speaker of the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof, the left side being a mirror image;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

We claim the ornamental design for a speaker, as shown and described.